M02061-12/-21

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8

3.3 or 5 Volt Laser Driver

Rev V6

1.5

Safety Logic Timing

tr

Modulation output rise time

20% to 80% into 25

Ω.

Measured using 11110000 pattern at 2.5Gbps

–55

75

ps

tf

Modulation output fall time

–

55

75

ps

OS

Overshoot of modulation output current

in the off direction.

into 25

Ω load

--

1

–

%

RJ

Random jitter

–

0.8

–

DJ

Deterministic jitter

Measured into 25

Gbps

K28.5 pattern at 4.25 Gbps

10

10

25

30

NOTES:

1.

Guaranteed by design and characterization.

2.

DC coupled operation at 3.3V is not supported. AC coupled operation at 5V is possible provided the outputs never exceed 6V.

3.

Pulse width distortion is measured single-ended.

Table 1-5.

Safety Logic Timing (1 of 2)

Symbol

Parameter

Conditions

Minimum Typical Maximum

Units

t_off

DIS assert time

Rising edge of DIS to fall of output signal below

10

μs

t_on

DIS negate time

Falling edge of DIS to rise of output signal above

1ms

t_init

Includes reset of FAIL; from power on after

Supply_OK or from negation of DIS during reset of

FAIL condition

23

5

ms

Table 1-4.

AC Characteristics (2 of 2)

Symbol

Parameter

Conditions

Minimum Typical Maximum

Units

(2)